.content {
    background-color: pink;
    width: 100%;
    background-color: rgb(245, 247, 250);
    margin-top: 0.4rem;
}

.contentmid {
    display: flex;
    justify-content: center;
}

.rotationChart-img {
    height: 3.5rem;
    width: 9.388rem;
}


.img_div {
    // border-radius: .625rem;
    display: block;
    position: relative;
}

.mask {
    position: absolute;
    background: rgb(0, 0, 0);
    color: #ffffff;
    opacity: 0;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    border-radius: .625rem;
    // pointer-events:none;
}

.img_div:hover .mask {
    opacity: 0.2;
    transition: 0.5s;
}